Aluminium Finned Tube

Description

Fin tubes are a type of heat exchanger that is used in many different industries. These tubes have a finned surface, which increases their surface area and allows them to transfer heat more efficiently. This makes them ideal for applications where high heat transfer rates are required, such as in power plants and refrigeration systems.

Fin tubes are made from a variety of materials, including copper, aluminum, and stainless steel. They are available in a range of sizes and shapes and can be customized to meet the specific needs of each application.

One of the key benefits of fin tubes is their ability to operate efficiently at high temperatures and pressures. This makes them suitable for use in a wide range of applications, including air conditioning, heat exchangers, and radiators.

In addition to their high thermal performance, fin tubes are also durable and long-lasting. They are resistant to corrosion and can withstand the harsh environments often found in industrial settings. This makes them a cost-effective solution for many different industries.

Single metal composite finned tube is rolled from aluminium tube as a whole. Pure aluminium rolling finned tube has no contact thermal resistance, high strength, heat resistance and mechanical vibration, good thermal expansion performance and considerable expansion heat exchange surface.

Extruded Aluminum Finned Tubes Product Range

• Integral Low Finned Tubes
  • These have fin height less than or equal to fin pitch.
  • Tube Length: Up to 32 meter.
  • Outside Diameter OD: Between 9.52 mm and 38.10 mm.
  • Tube Wall Thickness WT: 0.58 mm (min) and above.
  • Fins per Inch: 11, 16, 19, 23, 26, 30, 40 and 52 FPI.
  • Available in ferrous and nonferrous materials Copper Alloys, Copper-Nickel alloy, Admiralty Brass Alloy C44300, Aluminum Brass Alloy C68700, Carbon Steel.
• Integral Medium High Finned Tubes
  • Fin height more than fin pitch.
  • Tube Length: Up to 32 meter.
  • Outside Diameter: Between 19.05 mm and 31.75 mm.
  • Tube wall thickness: 2.1 mm (min) and above.
  • Fins per Inch: 11, 16 and 19 FPI.
  • Available in ferrous and nonferrous materials.
• Low Finned U Bend Tubes
  • Manufactured on in-house finned tube bending facility.
  • Easy to install in the equipment maintaining the circulation ratio.
  • Absorb thermal shocks in heat exchanger.
  • Available in Copper Alloys, Copper-Nickel alloy, Admiralty Brass Alloy C44300,Aluminum Brass Alloy C68700, Carbon Steel, 304 and 304L Stainless Steel ranging from 30R to 710R.
• Low finned tubes with internal rib
  • Externally enhanced surface area with integrally helical ribs on the inner side.
  • Improved inside heat transfer coefficient.
  • Available in Copper, Copper Nickel Alloy, Carbon Steel with externally 19, 26 fins per inch and internally 8, 10 Ribs.
• Low Finned Tubes Coils
  • Manufactured by coiling the integral finned tube.
  • Improved heat transfer area therefore compact size of heat exchangers.
  • Available in Copper, in coil diameters as per user’s requirement (Min Coil ID 50 mm).
• High Finned Tubes
  • High Finned Tubes have extruded fin heights up to 0.625″ (16mm). Single metal and bi-metallic finned tubes are available. Bi-metal finned tubes have a separate alloy liner tube inside the extruded fins. The mono-metal finned tubes have no liner tube with the fins integral with the tube.
• Corrugated Tubes
  • Manufactured by corrugation process of indenting plain tube with smooth and uniform spiral projections, which generate turbulence in both outside and inside media.
  • Higher turbulence ensures uniform temperature distribution.
  • No thinning of tube wall during process of corrugation.

Extruded Aluminum Finned Tubes Characteristics

• Heat transfer per meter of tube on the outside is equal to the heat transfer per meter on the inside.
• The intermediate un-finned section and un-finned sections at both ends help to slip the integral finned tubes in to the tube-sheets of shell and tube heat exchanger in a manner similar to plain tubes.

Extruded Aluminum Finned Tubes Benefits

• Combination of lower fin height and more fins per meter maintains the general ratio of 1:1 fin height to fin spacing.
• Doesn’t require higher tube pitch therefore, doesn’t require shell size higher than shell of bare tube heat exchanger.
• Improved heat transfer coefficient and rate of heat transfer as compared to conventional finned tube designs.
• Compact design of heat exchanger having lesser weight and size.
• Improved tube life.

Extruded Aluminum Finned Tubes Quality Assurance

• Compliance with quality standards, ASME SB111, SB-359, SA-213, SA-450 and all codes as per ASME /EN/ JS.
• Customer / Third Party Inspection TPI.
• Fin dimensions checking by IMTEs and Profile checking on profile projector.
• Stress Relief Annealing of non-ferrous fin tube on in-house electric conveyor belt furnace.
• Stress relief annealing of ferrous fin tubes as per specifications provided if required by client at additional cost.
• 100% tubes tested for leakages by Hydrostatic Test as per standard and customers requirements.
• Third Party Inspection can be offered from Lloyd’s, BV, TUV, BHEL, NTPC, Intertek, SGS, EIL, IBR etc. as per customer requirement.

Extruded Aluminum Finned Tubes Applications

• HVAC & Boiler
• Power Plants
• Heat Recovery Steam Generators
• Petrochemical Industries
• Marine Applications
• Refrigeration Applications
• Economizers
• Oil and Gas Coolers
• Plumbing and Air Conditioning
• Condensers and Evaporators
• Shell and Tube Heat Exchanger
• Other various Heat exchanger applications

Aluminum finned tube is made of aluminum material and has the characteristics of lightweight, good thermal conductivity, and strong plasticity. Aluminum has a high thermal conductivity, which can quickly conduct heat and improve heat transfer efficiency. In addition, aluminum has good corrosion resistance and can be used in humid and acid-base environments. The manufacturing cost of aluminum finned tubes is relatively low, making them suitable for large-scale production.

Aluminum finned tube:
Aluminum finned tubes are widely used in fields such as air conditioning, coolers, and automotive radiators. Due to the excellent thermal conductivity of aluminum, aluminum finned tubes can effectively remove heat in air conditioning and cooling systems, achieving rapid heat dissipation. In addition, the lightweight characteristics of aluminum finned tubes have also made them widely used in automotive radiators, reducing vehicle load and improving fuel efficiency.